<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref, watch } from 'vue'
import { userRegisterService, userLoginService } from '@/api/user'
import { userUserStore } from '@/stores/index'
import { useRouter } from 'vue-router'

const isRegister = ref(false) //登录注册切换

//绑定 form 数据对象
const formModel = ref({
  username: '',
  password: '',
  repassword: ''
})

//表单校验规则
const rules = {
  username: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 5, max: 10, message: '用户名必须是5-10位的字符', trigger: 'blur' }
  ],
  password: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    {
      pattern: /^\S{6,15}$/,
      message: '密码必须是6-15位的非空字符',
      trigger: 'blur'
    }
  ],
  repassword: [
    { required: true, message: '请再次输入密码', trigger: 'blur' },
    {
      pattern: /^\S{6,15}$/,
      message: '密码必须是6-15的非空字符',
      trigger: 'blur'
    },
    {
      validator: (rule, value, callback) => {
        if (value !== formModel.value.password) {
          callback(new Error('两次输入密码不一致!'))
        } else {
          callback()
        }
      },
      trigger: 'blur'
    }
  ]
}

//注册前的预先校验
const form = ref()

const register = async () => {
  await form.value.validate() //// 等待表单对象的 validate 方法执行完成，校验完成则继续执行
  const userfrom = { studentId: formModel.value.username, password: formModel.value.password } //构造登录数据
  await userRegisterService(userfrom)
  ElMessage.success('注册成功')
  isRegister.value = false //切换登录
}

//监听登录注册切换，切换时重置表单内容
watch(isRegister, () => {
  formModel.value = {
    username: '',
    password: '',
    repassword: ''
  }
})

const userStore = userUserStore() //存储token
const router = useRouter() //路由切换

//登录前的预校验
const login = async () => {
  await form.value.validate() //校验通过则执行以下方法
  const userfrom = { studentId: formModel.value.username, password: formModel.value.password } //构造登录数据
  console.log(userfrom)
  const res = await userLoginService(userfrom)
  console.log(res.data.data.id)
  userStore.setToken(res.data.data.token) //存入token
  userStore.setId(res.data.data.id) //存入id
  userStore.setPhone(res.data.data.phone)
  userStore.setName(res.data.data.name) //存入昵称
  userStore.setStudentId(res.data.data.studentId) //存入工号
  ElMessage.success('登录成功')
  router.push('/')
}
</script>

<template>
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      <el-form ref="form" size="large" autocomplete="off" :model="formModel" :rules="rules" v-if="isRegister">
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input :prefix-icon="User" v-model="formModel.username" placeholder="请输入用户名"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            :prefix-icon="Lock"
            v-model="formModel.password"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item prop="repassword">
          <el-input
            :prefix-icon="Lock"
            v-model="formModel.repassword"
            type="password"
            placeholder="请输入再次密码"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button class="button" type="primary" @click="register" auto-insert-space> 注册 </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = false"> ← 返回 </el-link>
        </el-form-item>
      </el-form>

      <el-form ref="form" size="large" autocomplete="off" :model="formModel" :rules="rules" v-else>
        <el-form-item>
          <h1>登录</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input :prefix-icon="User" v-model="formModel.username" placeholder="请输入用户名"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            name="password"
            :prefix-icon="Lock"
            v-model="formModel.password"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item class="flex">
          <div class="flex">
            <el-checkbox>记住我</el-checkbox>
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item>
        <el-form-item>
          <el-button class="button" type="primary" @click="login" auto-insert-space>登录</el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = true"> 注册 → </el-link>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
.login-page {
  height: 100vh;
  background-color: #fff;

  .bg {
    background:
      url('@/assets/logo2.png') no-repeat 60% center / 240px auto,
      url('@/assets/login_bg.jpg') no-repeat center / cover;
    border-radius: 0 20px 20px 0;
  }

  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;

    .title {
      margin: 0 auto;
    }

    .button {
      width: 100%;
    }

    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>
